CVE-2026-105213 ZITADEL - Authentication Bypass

ZITADEL < 4.17.1 contains a broken authentication caused by not checking an organization's inactive state during Login V2, letting users of deactivated organizations sign in and obtain tokens, exploit requires valid user credentials or session.

CVSS base score 8.2 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.24% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Authentication Bypass
Impact
Broken Authentication
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
Published
4 October 2026
Updated
15 October 2026
Weakness
CWE-287

Vendor fix

Upgrade to version 4.17.1 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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